The video is really a flimsy proof IMO. We don't know what else they did with their phones between the start and the conclusion. Did they search for it somehow?

The video is really a flimsy proof IMO. We don't know what else they did with their phones between the start and the conclusion. Did they search for it somehow? Did they or their friends post about it somewhere? I've seen this video posted several times already but never found anybody replicating the experiment, only anecdotal evidence in comment threads. That's not very scientific. I'm in no way a Facebook shill (I don't even have an account) but I doubt they're silly enough to risk the insane backlash they would get if people caught them spying on conversations when they shouldn't. I mean, think about it, Facebook would be listening on all their users cell phones all the time, parse it constantly to isolate keywords (not an easy task at this scale, and would probably result in a comical amount of false positives) and then use it to show ads? And all that in complete secrecy? Furthermore the video is more than two months old now, I'd expect that somebody would have found a harder proof by now, either by snooping on the network or even at the hardware level.